A novel ratiometric fluorescent sensor for Ag+ based on two fluorophores. (25th April 2018)

• Record Type: Journal Article
• Authors: Cen, Ming Jun; Chang, Tao; Yin, Yao Bing; Li, Xiao Liang; He, Yong Wu
• Is Part Of: Methods and applications in fluorescence. Volume 6:Number 3(2018:Sep.)
• Publication Date: 2018-04-25
• Subjects: fluorescence -- sensor -- Ag+ -- ratiometric; Fluorescence spectroscopy -- Periodicals; Fluorescence -- Periodicals; Spectrometry, Fluorescence -- Periodicals; Fluorescence -- Periodicals; Fluorescence; Fluorescence spectroscopy; Periodicals; 535.352
• DOI: 10.1088/2050-6120/aabcf1
• Languages: English
• ISSNs: 2050-6120

Abstract

Abstract: A novel ratiometric fluorescent probeBCB was reported for the first time for the sensitive and selective analysis of Ag + based on two Boradiazaindacene (BODIPY) as both the reference fluorophore and recognition part. Upon the addition of Ag + ions, a strong fluorescence emission at 570 nm from recognition BODIPY would be appeared, whereas the fluorescence of the other BODIPY at 535 nm would be a constant reference fluorescence signal. As a result, the ratio of fluorescence intensity ( λ 570/ λ 535) was changed from 0.16 to 1.0. And the selectivity of BCB towards Ag + over other metal ion was excellent. Other metal ions, such as Cd 2+, Cu 2+, Fe 3+, Hg 2+, Mg 2+, Ni 2+, Pb 2+ and Zn 2+ showed negligible changes in the both absorption and fluorescence spectra ofBCB .